Said davis and said kragtori



W.- E. GREENOUGH, S, B. DAVIS AND A. KRAGTORP.

MINE HOISTING APPARATUS.

APPLICATION FILED APR. 13. I918.

Patented Sept. 30, IQIIIZI.

2 SHEE'I S-SHEET I.

ATTORNEY gi /1 M W. E. GR EENOUGH, S, B. DAVIS AND. A. KRAGTORP.

MINE HOISTING APPARATUS.

APPLICATION FILED APR. 13. \918.

.1 317,366 I Patented Sept. 30, 1919.

IIIIIIIIIIII 7 MWW f Tm: COLUMBIA PLANOGRAPH cn., WASHINGTON, n, c.

\ UNirnn sT s PATENT OFFICE,5iv

WARREN EARL GREENOUGH AND SHERWIN B, nAvIsmF sromNn, wAsnaNeT'oiv, AND

ANTON KnAeTonP; or MUL AN, IDA-H0; SAID DAVIS AND SAID KnAe'ronP: AS-

SIGNOBS TO-SAID GREENO'UGH;

MINE I-IOIS'IING APPARATUS.

Specification of Letters Patent.

Patented Sept: 30, "19 19.

Application fi1ed'Apri1 13, 191s. Serial No. 229,427p" To all whom it may concern:

Be it known that we, WARREN EARL GmnNoUornSn-nmvm B. DAvrs, and ANTON KnAe'ronr, the firsttwo being-citizens of the United States, residing at Spokane, in the county of Spokaneand State of VVashmgton,and-the last namedbeing a citizen of the United'States, and residing at; Mullan, in the county of Shoshone and State of Idaho, have invented new and useful Improvements in Mine Hoisting Apparatus, of which the-following is aspecificat'ion.

This invention relates to improvements in hoisting apparatus and has to do more particularly with an improved cageand skip structure for mines.

One of the features of this invention is to provide a cage and skip structure having arigid frame, this frame including a rigid deck frame; In this combination, it is a feature of our invention to provide a dumpway through therigid deck frai'ne whereby material in storage bins, or ore pockets, at different elevations in the shaft can be dumped throughthe rigid deck frame into the subjacent skip; Our improved deck frame is provided with one or more floor sections which may be adjusted into an open,

position to permit of passage ofthe material through the rigid deckframe, or which may be closed down onto the deck frame to form a suitable floor. In this, connection, it is a feature of our invention to provide the deck frame with an apron which is suitably arranged to guide the material into the skip.

Thus'with a rigid deck frame, which may be designed to fit the shaft, and allow suitable 'working clearance, and by reason of this apron, we are able to convey material from the storage bins, or ore pockets into the subjacent skipwithout danger of pieces of material falling into the shaft. Furthermore, we are able to provide a rigid deckframe of substantially the size of'the shaft, with allowance for clearance, and the size of the shaft and deck frame are not in any way dependent upon the size and capacity of the skip.

Because of the foregoing construction, we are able to dispose the skip in very close subjacent relation to the deck frame, with combinedcage andskip structure can be very greatly reduced, the advantage being that the head room between the sheave wheel and the point of dischargeof the "skip can be much less than is necessary with the page and skip combinations heretofore used.

Furthermoraby reason of the improved means set forth for conveying the material into 'the'skip, we canemploy a'skipof any desired capacity in any of the ilsual size mine shafts, the height of the skip being'sufficient to dump the material outside the shaft timbers when the skip'is in a dumping position, and the desired skipc'apacity' being obtained by properly selecting the cross sectional dimensions of the skip.

A further feature of our"invention'consists in the provision of novel means where by our improved cage and skip structure mayalso be used in shaft; sinking. This:

feature of our invention includes extensible posed shoes may be connected to forma co'n tinuous-and elongated shoei This feature of our invention includes auxiliary shoes extending above'the cross-head of the cage so that when the latter has descended below the lower extremities of the last finished guides,-

the'wearing plates will still 'b e in engage ment with said guidesthroughout 'a 'consi'derable length.

Other-features and'objects of our inven--" tion will be more fully described in connection with the accompanying drawings and will be more particularly pointed out in and by the appended claims.

In the drawings: p

Figure 1, is a view in side elevation of our improved combination'cage and 'skip'st'ructure'sh'owingthe'skip in receiving relation with respect to a stem '6 bin chute.

Fig-2, is a-view looking from'the left of Fig; 1. I 1

Fig; 3, is a detached plan view of our improved rigid deck frame. v

Fig. 4, is a longitudinal sectional view of saiddeck frame on line ti of Fig; 3.

Fig. 5, is a view showing'our improved structure used for sinking a shaft, the skip being lowered to the bottom of the sump.

Fig.6, isa View looking from the left of F 5. Y

Fig. 7, is a face view of one of the shoes showing the same equipped with relatively short wearing plates such as are used when operating in a working shaft.

Fig. 8, is a view showing a shoe provided with elongated wearing plates of sufficient length to connect adjacent super posed shoes, such as will be used in sinking operations.

Fig 8. I

'Llke characters of'reference' des gnate similar parts throughout the different ng ures. of the drawings.

" First referring to Figsl 1 to a, in which 7 our invention is illustrated in its utility for a working; shaft, we haveshown the shaft timbers l conventionally, and sufliciently fully, not to require detailed description thereof, therefore we will immediately refer to the subject matter constituting our invention.

A hoisting cable 2, is connected with a cross-head 8, in the usual manner, a hood el,

being super-imposed thereon. To the cross head 3, is suspended a rigid framework consisting of main vertical frame members l, ,which preferably extend coextenslveof the length of the entire structure." Deck supporting frame members 5, extend from the the skip with the hinge shaft 10. Suitable dump rollers 13, are provided on theskip for engagement with dump? guides, not

shown. Along the vertical frame members 4;,"in suitable spaced relation, are sets of lower, intermediate and upper shoes 14c, 15 and 16, which areprovided with wearing plates 17, for engagement with the sides of the guides'18,and face plates 19, for engagement with the faces of the guides 18.

It will be noted that the terminal ends of the plates are suitably flared, 'as usual. 7

The deck frame 6- is proportioned to fit "the shaft with the slight necessary working clearance, it being understood that these cage' skips are specially designed and worked out for the particular type of shaft which is tobe equipped therewith. It is of special advantage, in many ways, as here-, inafter'more' fully set forth, to have a deck closely. fitting the shaft, and it is also a great advantage to have the deck frame enclined inwardly from end'frame member 22,

the apron also including side walls'26 which I V incline inwardly and downwardly from the 1Fig. 9, is a sectional view on lme 99 of lateral frame-members 20. Thus this hoppered construction of apronwill serve to guide the material into the skip without risk of the material falling into the shaft with possible resultant injury. From Fig. 1, it

is clear how the material will be guided and delivered into'the skip 1'1, inside of one side wall 27 thereof, and from Fig.2, it will be clear how the material will be directed in side of the remaining walls 28, of said skip. Furthermore, with a rigid deck structure or frame, it willbe seen that by dumping through the deck, we are able to dispose the ski in very close subjacentrelation to the dec r, thereby greatly shortening the entire length of the cage skip.

The deck 6, is provided with one or more floor sections 30, which 'willpreferably be hinged to the deck frame as indicated at 31, V V

and which maybe retained in an open position by any suitable expedient such as hooks 82. InFigs. land 2, the floorsections are shown in an open position to permit the material 33 to passfrom the storage bin chute i skip '11. Obviously,the floor sections will be closed, at other times, therebyaflording a floor area surfacesubstantially equal to the cross section of the shaft, on which to support structural parts, 'materialand men, in elevation ordeseent inthe shaft.

In Figs giand (S'we have shown how, with only a slight modifying attachment, our

7 34,. through the rigid deck frame, into the cage ski can be used in sinking a shaft.

The sha t timbers 35 areshown completed down to a certain elevation above the bottom of the sump 36. The guides 37'terminateat The device of our invention is shown lowered so that theQbottoni of the cage skip $9, forming the bottom of 'thesump. Thus, it will be seen that the cross-head 3 is dis to us, would be out of shoe registry with the guides, entirely, if they were used for shaft frame rests upon the muck or other material sinking, and disposedin the positionillustrated invFigs. 5 and6. As a matter of fact,

however, the usual cage skip usedfor workr ing a shaft, isnot used "at all for sinking a.

shaft, (a separate device being used for this purpose) and therefore it is a feature of our invention to provide a cage-skip which will serve equally well in either utility.

As in F ig. 1, the lower shoes 14 are pro vided with the short wearing plates 17 and 19. However, the intermediate shoes 15, and the upper shoes 16, are connected by elongated wearing plates, the plates 39 engaging the sides of the guides, when elevated, and the plates 40 the faces of the guides. At each end, these plates are flared, as indicated at one end at 41 and 42. Secured to the vertical frame members 4' are auxiliary lower shoes 43, which are of the same construction as the usual shoes 14 to 16. Above the cage-skip are upper auxiliary shoes 44.. These shoes 44 are connected by a shoe bar 45, which will serve to hold these shoes firmly in position with respect to the guides 87. The shoe bar 45, may be hubbed, as indicated at 46, for passage therethrough of the hoisting cable 2. Shoes 43 and 44, are connected by side wearing plates 47, identical with plates 39. However, the face wearing plates 40, are of suflicient length to reach from shoes 15 to shoes 44, thereby afiording a continuous guide face engagement of exceptional length.

Now, therefore, it will be clear that while our cage-skip can be lowered a considerable distance below the guides 37, it will be in guiding engagement therewith so that when the cage-skip is elevated, the face plates 40 and the side plates 47, will maintain the upper ends of the plates 39 in engageable registry with guides 37.

The floor sections 30, are provided with rails 48, which extend throughout the length of said section. Thus the mine transfer car can be run onto and ofl from the deck, as a direct result of the deck being rigid. F urther, by arranging the floor sections 30 with their greatest length coincident with the passage-Way through the cage, the rails 48 need not be in sections but each can be made of one piece, without a break therein.

A rigid deck frame has very great ad vantages over a collapsible deck frame in that the rigid frame may be proportioned to fit the shaft, with slight working clearance,

and therefore it substantially fills the shaft, transversely, and is thus very effective against dropping of materials ofl from the deck down into the shaft, and further, it prevents the operatives from getting their arms or legs caught between the deck and shaft.

Our invention provides for the utmost flexibilityof proportions in designing this structure for a shaft. For instance, it will be clear that the skip must be of suflicient height from the axis of the shaft 10, to the top of the skip, so that when the skip is inverted to a dumping incline of say 50 degrees, it will have suflicient reach to dump its contents outside of the shaft. Given this height; if the skip were proportioned to have clearance fit with the full cross section of the shaft, it would have a capacity for content in excess of the engine power of the usual mine.

we can reduce either transverse dimension of the skip, to provide for the desired capacity, and we can always correspondingly proportion the apron so that material will always be discharged into the skip irrespective of reduction of the latter with respect to the shaft.

It is believed that the advantages and utility of our invention will be fully understood from the foregoing description, and while we have herein shown and described specific forms of our invention, we do not wish to be limited thereto except for such limitation as the claims may import.

We claim:

1. In a mine shaft hoist, a combined skip and cage structure comprising a main rigid frame, a rigid cage deck frame on said main frame, a skip mounted on said main frame in sub-1acent relation to said deck and of reduced cross section with respect thereto, said deck having a dump-way therethrough for passage of material into said skip, whereby said skip may be located in close relation beneath said deck to thereby relatively shorten the height of said frame.

2. In a mine shaft hoist, a combined skip and cage structure comprising a rigid frame,

a cage deck on said frame proportioned to run in said shaft with a slight edge Work- 111g clearance, a skip on sald frame beneath said deck and of greatly reduced cross sectional dimensions with respect to said deck, said deck having a dump-way therethrough for passage of material into said skip, whereby said skip may be located in close relation beneath said deck to thereby relatively shorten the height of said frame.

3. In a mine shaft hoist, a combined skip and cage structure comprising a rigid frame, a cage deck on said frame, a skip mounted on said frame beneath said deck, said deck having a dump-way therethrough for passage of material into said skip, and an apron carried by said deck for guiding the material into said skip.

4. In a mine shaft hoist, a combined skip and cage structure comprising a rigid frame, a cage deck on said frame, a skip on said frame beneath said deck, said deck having a dump-way therethrough for passage of material into said skip and an apron carried by said deck and projecting downwardly therefrom and inclined toward said skip to guide the material into said skip.

5. In a mine shaft hoist, a combined cage and skip structure comprising a rigid hoist Therefore, with our con-' struction of rigid deck frame and apron,

frame, a cage deck frame mounted on said hoist frame and having a dump-way therethrough, and said deck frame being proportioned to fit the shaft with a slight working clearance, a skip mounted on said hoist frame beneath said deck and of reduced cross sectional dimensions with respect to said deck, said deck frame having a dumpway therethrough and being provided with an apron inclined downwardly to guide the material into said skip, and floor sections on said deck frame openable for passage of the material through said deck frame and closable down onto said deck frame to form a deck floor. I

6. In a deck frame structure for a combined mine shaft cage and skip, a deck frame having a dump-way therethrough, an apron mounted on said frame, and a floor section or sections closable onto said frame to form, a floorv or openable for passage of the material through said frame.

7. In 'a mine shaft hoist for sinking, a combined cage and skip structure, and guiding means carried by said structure and extending sufficiently thereabove to retain engagen'lent with the shaft guides when the skip is lowered to the sump.

8. In a mine shaft hoist for sinking, a

combined cage, and skip structure, usual shoes on said structure for engagement with the guides of the shaft, and said structure having means extending suiiiciently above said structure to retain engagement with the shaft guides when the skip is lowered to the sump and thereby register the usual shoes with such guides when the structure is hoisted. r V

9. In amine shaft hoist, a combined cage and skip structure having vertically arranged shoes, relatively short guide wear ing strips for said shoes when said struc ture is used for mining in completed shafts,

and relatively long guide wearing strips of su'mcient length to extend from one shoe to the next shoe when said structure is used for; sinking. V

10. In a mine shaft for sinking, a com- Oopies of this patent may be obtained for binedcage and skip structure having lower, intermediate'and upper shoes, short wearing strips for said lower shoes, long wearing plates having their upper ends secured to said upper shoes and their lower ends secured to said intermediate shoes to form elongated wearing shoe plates when sinking, auxiliary shoes secured to said structure above said upper shoes, top auxiliary shoes above said structure, a shoe bar holding said top auxiliary shoes in position with the shaft guides, elongated side wearing plates having their lower ends secured to said lower auxiliary shoes and their upper ends secured to said top auxiliary shoes, and edge wearing plates secured to said intermediate shoes and extending past said top and lower auxiliary shoesand being secured to said top auxiliary shoes.

11. In a deck frame structure for a combined cage and skip, a deck frame having adump way therethrough, an apron mounted on said frame and projecting therebelow, floor sections hinged to said deck frame and adapted to be opened to permit of passage of material through said deck frame and closed onto said deck frame to form a floor, and rails secured to said floor sections to permit a transfer car to be run onto or off from said deck. 7' 12. In a main shaft hoisting apparatus, a combined cage and skip, an open deck frame above said skip for passage of material throughsaid frame down into said skip, an apron projecting downwardly through one portion of said open frame to guide the material into said skip, floor sections for said deckframe hinged to open away from the central portion of said frame, and a skeleton operators support'm'ounted in another portion ofsaid open frame for support of the operator when said floor sections are open.

In testimony, that we claim the foregoing as our own, we hereby afiix our signatures. WARREN EARL GREENOUGH. SHERWIN B; DAVIS. ANTON KRAGTORP.

five cents each,by addressing the Commissioner of Patents, Washington, I). c, a v i 1 

